Pocket microscope



Patented Apr. 22, 1930 i 1,755,759

UNirEuesraras PATENT ortica 'y KARL AHMELS, 'OF K'ASSEL, AND LUD'W'IG OHM, 0F GUDENSBERG, NEAR KASSEL,

' GERMANY POCKET ivronosoorn o Application medium 3o, 192s. ser-iai No. 289,455. I

This invention relates to' pocket-microand an objective lens in the top thereof, this scopes and consistsin shaping a tube ofthe tube being shiftable in the ocular tube, and microscope by obliquely cutting itv off near cut-off obliquely at its lower end so as to terthe focus of the objective-lens infsuch a manminate in a point, substantially and for the 5 ner, that the light mayy arrive at the object purpose set forth. y

of the observation without obstacle. Y Y .3. A pocket microscope, comprising, in VSaid tubevmay be the tubes ofthe' micro-` combination, an ocular tube andan ocular scope containing the ocular or /isvpreferably lens in it; and objective sleeve inserted into a sleeve, inserted in theocular-tube and the lower end of said tube; an objective lens m containing the objective-lens The invention-is more fully described and the said tube immediately above said Sleeve, claimed hereinafter and shown in the accointhislatter being cut-ofi1 -obliquely at its lower panying drawing, which represents the new end so as to terminate in a point adapted'` pocket-microscope in cross-section. to serve as supporting point for the micro- The microscope consists of the ocular-tube Scope when observing an object, substan- 65' '2 and the sleevel, which is inserted in said tia'lly as set forth. tube. Said sleeveL contains the Yobjectiv'e- In testimony whereof we aiiX our signalens and is obliquely cut oif at its lowermost tures. Y Y end.- In this way the light canl fall without KARL AHMELS.

in said sleeve; a helical spring' inserted into 60' obstacle onto ythe object to be observed. The l LUDWIG OHM. 7e4v point ofthe sleeve 1f may be set up neXt to said object. 'A pin v3 is fastened to they sleeve l. This pin 3 passes through a slit of the ocular-tube. Thus the microscope may be eX- actly regulated by shifting the sleeve l in the Y 75 tube 2. A spring 4 maybe inserted between t .o f the sleeve l and the tube 2 in such a manner, that the regulating may be effected by simply pressing down the ocular tube 2, against the point of sleeve 1. v 80 The described pocket-microscope is ever ready for purposes of observation. y

The exact sizes, proportions and'so on are not essential to the successful operation of said pocket-microscope and we do not therey y ,Y l 85 fore limit ourselves to thefprecisedetails of construction save in so faras arehereinafter claimed.` Y'

IVe claim:

4o l. A pocket microscope, comprising, in Y Y v 0'v combination, an ocular tube and an ocular'y lens in it; an objective tube andan objective lens init, this tube being shiftable in the ocular tube, and cut-off obliquely at its lower 45, end so as to form there a point of support and f 95 permit free access of light to the object to be o observed, substantially as setr forth.

2. A pocket microscope, comprising, in l' combination an ocular tube and an ocularV a0 lens in the top thereof; an objective tube l v f 100 

